So, I'm not really going to critique your riding, but tell you what I think if I was an examiner. There are things that missed on their list that they wanted you to be able to do. I know you don't have a cross country course right now, thats fine. However, they want you to show putting a halter on, leading the horse, mounting and dismounting. These are simple things that you could easily add to the video, and I would really recommend putting them in, its easy points! If this were me examining the video I would like to see longer clips of you riding. For example for a downward transition you have a few seconds of a canter and then trot. To be able to see if you really have a good knowledge of the aids and control I would rather see you in a consistent canter maintaining a good pace, and then ask for the downward transition. I don't think at any point you would be marked down for your riding skills, but I do think you can showcase them better.